﻿public class HomeWork {
	public static void main(String[] args) {
		//矩形

		int x = 10;
		for (int i = 1; i <= x; i++) {
			for (int j = 1; j <= x; j++) {
				System.out.print("*");
			}
			System.out.println();
		}
		System.out.println("\n");


		//直角三角形

		for (int i = 1; i <= x; i++) {
			for (int j = 1; j <= i; j++) {
				System.out.print("*");
			}
			System.out.println();
		}
		System.out.println("\n");


		//倒直角三角形

		for (int i = 1; i <= x; i++) {
			for (int j = x; j >= i; j--) {
				System.out.print("*");
			}
			System.out.println();
		}
		System.out.println("\n");


		
		//等腰三角形

		for (int i = 1; i <= x; i++) {
			for (int j = x; j >i; j--) {
				System.out.print(" ");
			}
			for (int j = 1; j <= 2*i-1; j++) {
				System.out.print("*");
			}
			System.out.println();
		}
		System.out.println("\n");


		
		//菱形

		for (int i = 1; i <= x; i++) {
			for (int j = x; j >i; j--) {
				System.out.print(" ");
			}
			for (int j = 1; j <= 2*i-1; j++) {
				System.out.print("*");
			}
			System.out.println();
		}
		for (int i = 1; i < x; i++) {
			for (int j = 0; j <= i-1; j++) {
				System.out.print(" ");
			}
			for (int j = 1; j <= 2*x-1-2*i; j++) {
				System.out.print("*");
			}
			System.out.println();
		}